Large diameter welded steel pipe production processLarge diameter welded steel pipe production process mainly adopts cold forming process (JCOE), which is a gradual forming method of steel plate, so that the steel plate is formed into the required bending degree under the standard die of the upper p

1. Choose suitable venues and warehouses(1) The site or warehouse for storing steel pipes should be located in a clean and well-drained place, away from factories and mines that produce harmful gases or dust. Weeds and all debris should be removed on the field, and the steel pipe should be kept clea